This requirement is for the procurement of ten (10) ISU-90 or equal Mobility Containers to support the 628th Logistics Readiness Squadron (LRS) at Joint Base Charleston, SC. The objective is to acquire upgraded mobility containers to facilitate the safe and secure transport of general cargo, specifically including aircraft wheels and tires. All proposed items must be explicitly approved as carriers of general cargo on United States Air Force (USAF) prime cargo mission aircraft and must hold current, verifiable certification from the Air Transportability Testing and Loading Agency (ATTLA) prior to award. Key Salient Characteristics Required: Dimensions & Design: Standard ISU-90 footprint (108" x 88") with a center dividing wall, removable center post, and two (2) access doors (or one door on each short side). Capacity: Minimum payload capacity of 10,000 lbs. Must be stackable two-high (fully loaded or empty). Durability: Weather, dust, and sand-proof construction with an aluminum extruded, mechanically fastened base. Color: Standard Green. Features: Must include a removable/portable ramp, a base pre-drilled for an optional caster set, and internal D-rings configured to secure aircraft tires.